# A137360 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 0 6 1 7 5 8 15 9 35 10 70 11 128 12 226 13 402 14 735 15 1375 16 2588 17 4830 18 8882 19 16108 20 28943 21 51785 22 92573 23 165525 24 295869 25 528069 26 940259 27 1669725 28 2957941 29 5229953 30 9233748 31 16284106 32 28688451 33 50490125 34 88765885 35 155891305 36 273495479 37 479360847 38 839451764